Changeable gun stock



FIG. 1 is a front elevational view of the changeable gun stock showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof, showing the pull pin removed the stock portion.

The broken line showing of a gun in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a changeable gun stock, as shown and described. 